Spring.



' R. J. COLLINS'. SPRING; .LPPLIOATIOI FILED AUG.28, 1911.

1.037,72@ Patented septh 3, 1912.

i v 3mm/|900) Jeagrzfcfam,

Sito/mug y :ROBERT J. COLLINS, or sioux ciTY,i'owA.

Specification of Letters Patent.

SPRING.

Patented Sept. 3, 1912.

' Appleat'ioniled August 26, 1911. Serial No. 646,290.

To all whom 'it may concern.'

Be it known that I, ROBERT J. COLLINS, a citizen of the United States, residing at .Sioux City, in the county of Woodbury and State of Iowa, have invented new and useful Improvements in Springs, of which the following is a specification.

This invention'relates to springs.

` The object of the invent-ion is to provide a device whereby a plurality of looped; springs are combined together. in such a manner that each independent loop limits the -movement of another loop of a -separate spring and is in turn limited by the loop of a separate spring when all of the springs are expanded and ywhereby each loop operates and lis independentv of the other loops when the of loops 6, 7 and 8 which are interwoven or` spring is compressed.` I

A further object of the invention is to provide asimple and durable device of this character which may be' utilized for any purpose or in any place where a compression spring is required.v p

A further object of the invent-ion will. appear as the following specific description is `read lin connection with the accompany ing drawings which form a part of this application and in which v Figure 1 is aside elevation Fig. 2 a top plan view and Fig. 3 a vertical sectional view. -l Referring more particularly to the drawing, l represents a support of any suit-able character upon which the lower terminal endsof four springs 2, 3, 4 and 5 are secured. Each spring consists of a` plurality connected with the loops of the other springs in .the 'following manner: The lower portion of the spring 2 is extended over the loop 6 of the spring 3, beneath the' lower portion ofthe spring 4, and then the lower leg of the loop 'f of the spring 2 exi tends over the lower leg of the loop 7 of the spring 4, under the lower leg of the loop 7 of the springl 3, then over the lower leg of the loop 8 of t-he spring 3, and under the lower leg of the loop 8 of the spring 4.

The end of the spring 2 or the upper leg of I the loop 8Y thereof extends over the upper leg of the loop 8 ofthe spring 4 and beneath A the upperl leg of the loop 8 of the spring 3.

The spring 3 is interwoven with the springs 5 and 2 in a similar manner, that is, it extends over and under the separate loops .thereof and has its end terminating beneath the upper leg of the loop 8 of the spring 5. The spring 4 is interwoven in a similar manner and has the upper leg of the loop 8 terminating beneath the upper leg of the loop 8 of the spring 2 while the spring 5 has the upper leg of the loop 8 terminating beneath the upper leg of the loop 8 of the springv 4. In this manner it will be seen that' each loop of the four springs constitutes a. unit, three of which are sho-wn in the accompanying drawing.

be' lbuilt up by' forming additional loops and interweaving the springs as shown, each unit consisting ofa plurality of springs having one loop, and, when ycompressed to `its full extent, the loops 8 of veachspring will engage upon the top of the'loops 6 and intermediate loops! 7 have their legs .arranged lbetween the legs ofthe upper and lower loops 'of one of the springs which is at right anglese thereto.` It Iwill be noticed that the loops of the spring 2 are arranged `in^a plane parallel with the loops of the spring` vbut in staggeredrelation thereto while the 'loops of the spring 3, which are Aarranged in parallel planes with the loops of the spring 4 but are in staggered relaltion thereto are arranged at. right angles to the'fsprings 2 and 5.

Having thus described the invention, what I claim as new is :l-

A spring comprising four resilient members having a plura1ity of horizontallyarranged loops, two of saidrmembers being arranged in parallel planes and having their loops arranged in staggered relation, the other two members being arranged in parallel planes and having their loops in staggered relation and interwoven in op- It will, of course, be understood that these units mayposite directions with and at rightI angles to the plane of, the t'wo first-mentioned members. A

.Intestimon whereof I affix my signature in presence o two witnesses.

CLIFFORD Fon'rnis, l. E. K.. WARD.

Copies of thsvpatent may be obtained for ve cents each, by addressing ther Commissioner of-Piitents,

Washington, ID. C. 

